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| author | Michael Niedermayer <michael@niedermayer.cc> | 2015-09-25 14:26:14 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2015-09-25 14:36:41 +0200 |
| commit | b2955b6c5aed11026ec5c7164462899a10cdb937 (patch) | |
| tree | 87915428d8b22236863b447290d6d28a809ef01e /libavcodec/ffv1dec.c | |
| parent | 9458a62decfcaa1313b1ba69276466de536d0768 (diff) | |
avcodec/rangecoder: Check e
Fixes hang.nut
Found-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'libavcodec/ffv1dec.c')
| -rw-r--r-- | libavcodec/ffv1dec.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/libavcodec/ffv1dec.c b/libavcodec/ffv1dec.c index fbb85d627d..fd9dc6098c 100644 --- a/libavcodec/ffv1dec.c +++ b/libavcodec/ffv1dec.c @@ -47,8 +47,11 @@ static inline av_flatten int get_symbol_inline(RangeCoder *c, uint8_t *state, else { int i, e, a; e = 0; - while (get_rac(c, state + 1 + FFMIN(e, 9))) // 1..10 + while (get_rac(c, state + 1 + FFMIN(e, 9))) { // 1..10 e++; + if (e > 31) + return AVERROR_INVALIDDATA; + } a = 1; for (i = e - 1; i >= 0; i--) |